Chemical injection nozzle for water treating apparatus



Nov. 23, 1943. I J. F. ISEBALD CHEMICAL INJECTION NOZZLE FOR WATERTREATING APPARATUS Filed Feb. 13, 1942 l llll I.

Jam-pl] F Saba/ d IVE OR 7 A'ITORNEY Patented Nov. 23, 1943 CHEIWICALINJECTION NOZZLE FOR WATER TREATING APPARATUS Joseph F. Sebald,

Bloomfield, N. J., assignor to Worthington Pump and MachineryCorporation,

Harrison, N. J.,

a corporation of Delaware Application February 13, 1942, Serial No.430,722

1 Claim.

This invention relates to water treating apparatus, and moreparticularly to a chemical injection nozzle for delivering reagent orchemical into a water treating apparatus for mixture with and treatmentof water in the apparatus.

An object of the present invention is to provide a chemical injectionnozzle structure whereby any desired projection of a predeterminedquantity of chemical into a water treating apparatus may be provided bysimple, easy adjustment of the nozzle structure.

With these and other objects in view, as may appear from theaccompanying specification, the invention consists of various featuresof construction and combination of parts, which will be first describedin connection with the accompanying drawing, showing a chemicalinjection nozzle for water treating apparatus of the preferred formembodying the invention, and the features forming the invention will bespecifically pointed out in the claim.

In the drawing:

Figure 1 is a longitudinal section through the nozzle housing showingthe nozzle proper in side elevation.

Figure 2 is a longitudinal section through the outlet end of the nozzletaken on the line 2-2 of Figure 1.

Figure 3 is a cross-sectional View taken on the line 3-3 of Figure 2.

Referring more particularly to the drawing, the improved chemicalinjection nozzle structure includes a nozzle retaining and guidinghousing I, which may be attached in any suitable manner, as by theflange 2, to the shell of a water treating apparatus of any approvedtype (not shown). The housing I has axially aligned cylindrical portions4 and 5 at its upper and lower ends, and a valve seat forming sleeve 6is removably inserted into the upper cylindrical portion 5. The bore 1of the sleeve 6 has the same diameter as the bore 8 of the cylindricalportion 4 of the housing I, and the diameter of these bores is such asto receive and snugly fit the exterior diameter of the nozzle 9.

The nozzle 9 is in the form of a straight tube and has a flange l0carried thereby intermediate of its ends for connection with the flangeH on the top of the housing I. The flange Ii! being connected to theflange I and the nozzle 9 being inserted through the sleeve 6 and thecylindrical bore 4, serves to hold the nozzle 9 firmly and securely inplace.

The outlet orifice of the nozzle 9 may be regulated to provide thedesired projection of the predetermined quantity of chemical into thewater treating apparatus. This regulation of the outlet orifice of thenozzle 9 is provided by means of the orifice plug structure 14, whichcomprises a conical body I5 having a plurality of radiating ribs l6formed thereon. The outer edges of the ribs parallel to the axis of theconical body I5 are threaded for threaded engagement with the outlet endof the nozzle 9. As hown in Figure 2 of the drawing, the ribs it havingoutwardly flaring projections I7 on their lower ends, the outer surfacesof which incline parallel to the outer surface of the conical body I5,and these projections l1, engaging the inclined inner surface [8 of theoutlet end of the nozzle 9 form stops for limiting the insertion of theorifice plug [4 into the nozzle 9. By varying the degree of insertion ofthe orifice plug M into the nozzle 9 the crosssectional area of theoutlet orifice between the conical body l5 and the inclined surfaces l8at the end of the nozzle 9 may be varied to regulate the delivery ofchemical or reagent into the water treating apparatus through the nozzle9. The conical body l5, cooperating with the nozzle, will form a spraydevice, causing the reagent or chemical introduced into the watertreating apparatus to be sprayed therein for mingling with the waterwithin the apparatus.

It will be understood that the invention is not to be limited to thespecific construction or arrangement of parts shown, but that they maybe widely modified within the invention defined by the claim.

What is claimed is:

In a water treating apparatus, an injection nozzle structure comprisinga tubular nozzle having an outlet end, a plug having a conical bodycoacting with said outlet end to provide an outlet orifice, and meansfixed to said conical body and adjustably connected with said outlet endfor adjusting the conical body relatively to said outlet end to vary theflow capacity of the outlet orifice, said means being provided withstops engageable with said outlet end in the minimum flow position ofthe conical body.

JOSEPH F. SEBALD.

